The Insulator,washer, cataloged under National Stock Number 5970-00-104-0873, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Materion Brush Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-104-0873 |
| Primary Part Number | BBW900-320-40 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Materion Brush Inc |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Material Document and Classification | CEREMIC,MIL-I-10 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.900 INCHES NOMINAL IN |
| Inside Diameter | 0.320 INCHES NOMINAL IN |
| Material | CERAMIC OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| BBW900-320-40 | Materion Brush Inc (USA) |
| Reference | Meaning |
|---|---|
| 414924-10 | 3/2 Design control — primary reference U.S. Government activity |
| B-900-320-40 | 5/9 Secondary reference IV-Electronic Klaus Vespermann Kg |
NSN 5970-00-104-0873 is a Insulator,washer, manufactured by Materion Brush Inc, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-104-0873 has 1 manufacturer part number on file: BBW900-320-40 (Materion Brush Inc).
Key specifications for BBW900-320-40: Overall Height: 0.040 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Material Document and Classification: CEREMIC,MIL-I-10 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.900 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.